Question

Paul hits a baseball straight up in the air. The baseball is hit with an initial velocity of 70 feet per second when it is 3.5ft off the ground. Write the quadratic function models the height h of the ball after t seconds in flight.

Answer 1

Answer:

paul hit a baseball straight up into the air. The equation below describes the height of the ball (h), in meters, as a function of time (t) in seconds.

h(t) = -9.8t² + 30t + 1.5

What is the height of the ball after 3 seconds?

i keep getting -195.9

Step-by-step explanation:

Answer 2

h(t) = -9.8t² + 30t + 1.5

→ -64.54

The quadratic function, or a function of degree two, has three forms:

Vertex f(x) = a(x - h)2 + k, where (h, k) is the vertex, the highest or the lowest y value of the function.

Remember that a parabola is simply a graph of a quadratic function.